Best Lemon Shortbread Bars

Update : February 10, 2026

Delicious lemon shortbread bars served on a white plate with lemon slices

Why Make This Recipe

Best Lemon Shortbread Bars are a perfect treat for anyone who enjoys a sweet and tangy flavor. These bars combine the rich, buttery taste of shortbread with a fresh lemon filling that adds a delightful zing. They are easy to make and ideal for gatherings, parties, or just as a sweet snack at home. Plus, the bright taste of lemon can lift your spirits any time of year!

How to Make Best Lemon Shortbread Bars

Ingredients:

1 cup unsalted butter, softened
1 cup brown sugar, packed
1 cup quick cooking oats
2 cups all-purpose flour
1/2 teaspoon salt
1/4 teaspoon baking powder
1 cup granulated sugar
3 large eggs
1/2 cup fresh lemon juice
Zest of 1 lemon

Directions:

Preheat the oven to 350°F (175°C) and grease a 9×13 inch baking dish.
In a bowl, cream together the softened butter and brown sugar until light and fluffy.
Mix in the oats, flour, salt, and baking powder until well combined.
Press half of this mixture into the bottom of the prepared baking dish to form the crust.
In a separate bowl, whisk together the granulated sugar, eggs, lemon juice, and lemon zest until smooth.
Pour the lemon filling over the crust in the baking dish.
Crumble the remaining oat mixture on top of the lemon filling.
Bake in the preheated oven for 25-30 minutes or until the top is golden.
Let cool before cutting into bars, and enjoy!

How to Serve Best Lemon Shortbread Bars

Best Lemon Shortbread Bars can be served as a delightful dessert or a refreshing snack. Cut them into squares or rectangles of your desired size and plate them. You can dust the bars with powdered sugar for an elegant presentation or serve them with a dollop of whipped cream or a scoop of vanilla ice cream for added sweetness.

How to Store Best Lemon Shortbread Bars

To store your lemon shortbread bars, place them in an airtight container. They can be kept at room temperature for up to 3 days. For longer storage, you can refrigerate them, where they’ll last up to a week. If you want to keep them for an even longer period, you can freeze them. Wrap them tightly in plastic wrap and then place them in a freezer-safe container. They can last for up to 3 months in the freezer.

Tips to Make Best Lemon Shortbread Bars

Make sure the butter is softened for easy mixing.
Always use fresh lemon juice for the best flavor.
Don’t skip the lemon zest; it enhances the lemon flavor in the filling.
Allow the bars to cool completely before cutting to avoid crumbling.

Variation

You can consider adding poppy seeds to the lemon filling for a unique texture. Chopped nuts, such as pecans or almonds, can also be sprinkled on top for added crunch.

FAQs

Can I use bottled lemon juice instead of fresh?
While fresh lemon juice offers the best taste, you can use bottled lemon juice. Just make sure to choose a high-quality brand.

How can I tell if my bars are done baking?
Look for a golden top and make sure a toothpick inserted in the center comes out clean.

Can I double the recipe?
Yes, you can double the ingredients and use a larger baking dish. Just adjust the baking time if needed, checking for doneness.